public class Bird extends Animal{
    private String name;
    private double wingSpan;

    public Bird(String name, double wingSpan) {
        this.name = name;
        this.wingSpan = wingSpan;
    }

    @Override
    public void move(){
        System.out.println("鸟在飞翔");
    }
    @Override
    public void makeSound() {
        System.out.println("鸟发出啾啾叫声");
    }
}
